研究目的
Investigating the effectiveness of a crow deterrent system with alarm sound using a crow observation system at a photovoltaic power plant.
研究成果
The crow deterrent system was effective in reducing the number of crows entering the observation range and preventing them from stopping within it. No damage to solar cell modules was observed in the area where the deterrent system was installed during the inspection period. However, the limited amount of data means that further measurements are needed to confirm the statistical effectiveness of the system.
研究不足
The amount of measurement data is very limited, and it does not show statistical effectiveness. Future studies need to conduct more measurements to establish statistical validity.
1:Experimental Design and Method Selection:
The study utilized a crow observation system for long-term photography and a commercially-available crow deterrent system. The observation system was designed to operate during daylight hours, capturing high-definition images at 30 frames per second.
2:Sample Selection and Data Sources:
The study focused on a large-scale photovoltaic power plant with a history of damage to solar cell modules, suspected to be caused by crows dropping stones.
3:List of Experimental Equipment and Materials:
The crow observation system included a camera with two SD card slots, a lead-acid battery, a solar cell module for recharging, and a waterproof case. The crow deterrent system used sound waves to repel crows.
4:Experimental Procedures and Operational Workflow:
The inspection period was divided into three terms, with the deterrent system active only during the middle term. The observation system recorded images during daylight hours, and data was analyzed using a program to detect bird flights efficiently.
5:Data Analysis Methods:
A program developed by the Central Research Institute of Electric Power Industry was used to analyze the captured images, focusing on detecting and identifying crow flights.
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